/Engine/Plugins/Runtime/XRBase/Source/XRBase/Public/HeadMountedDisplayFunctionLibrary.h
Setup the layout for ESpectatorScreenMode::TexturePlusEye.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Input|HeadMountedDisplay|SpectatorScreen") static void SetSpectatorScreenModeTexturePlusEyeLayout ( FVector2D EyeRectMin, FVector2D EyeRectMax, FVector2D TextureRectMin, FVector2D TextureRectMax, bool bDrawEyeFirst, bool bClearBlack, bool bUseAlpha )